>If Zuck took Facebook public 5 years ago, they would have gotten much less money, and they would have been distracted by investors calling for them to focus on building out that business model rather than attracting users - and Zuck may have lost controlling power in the company (less money + less users = less leverage for Zuck).
Would this be a bad thing? The entire reason that Facebook needed to go public was because they needed the money to pay off their investors.